Rockwell Automation 193-EC1_2_3_5, 193-ECPM,592-EC1_2_3_5 E3 and E3 Plus Solid-State Overload Relay User Manual - Manual (Page 11)

Rockwell Automation Publication 193-UM002I-EN-P - December 2011 11
Chapter
1
Product Overview
Introduction
This chapter provides a brief overview of the features and functionality of the E3
Overload Relay.
Description
The E3 Overload Relay is a multi-function solid-state microprocessor-based
electronic overload relay for the protection of squirrel-cage induction motors
rated from 0.4…5,000 A. Four versions are available: the E3 model, EC1, and
E3Plus models EC2, EC3, and EC5.
Figure 1 - Front Panel Display (E3 Plus Overload Relay shown)
E3 PLUS
S1
S2
13 14 23 24 95 96 IT1 IT2
1 2 3 4 5 6
NETWORK
STATUS
OUT A
IN 1
IN 2
OUT B
IN 3
IN 4
MSD
LSD
TRIP
WARN
TEST/
RESET
D S/N
FRN 4.XXX
1AOXXXXX XXX
SER
Test/Reset Button
Voltage Input Module
Connection
(193/592 EC5 only)
Ground Fault
Sensor Input
Output & PTC
Terminals
NOTE: On model EC5
devices, terminals IT1 and
IT2 are marked 7 and
8, respectively.
LED Status
Indicators
Node Address Switches
(series B and later)
DeviceNet Port
Input
Terminals